PROGRAMMING:Sum up
This topic requires reading in 2 integers a and B, and then output their sum.
###Input format:
There are several examples, one row for each. Two integers a and B with absolute value less than 1000 are given in each line.
###Output format:
For each set of inputs, output the value of a + B in one line.
###Input example:
```in
18 -299
```
```in
5 -5
```
###Output example:
```out
-281
```
```out
0
```
answer：If there is no answer, please comment
###Input format:
There are several examples, one row for each. Two integers a and B with absolute value less than 1000 are given in each line.
###Output format:
For each set of inputs, output the value of a + B in one line.
###Input example:
```in
18 -299
```
```in
5 -5
```
###Output example:
```out
-281
```
```out
0
```
answer：If there is no answer, please comment